rename upstream-man-pages to upstream-doc
[clinton/guile-figl.git] / upstream-doc / man3 / glGetShaderInfoLog.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
+             "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
+<refentry id="glGetShaderInfoLog">
+    <refmeta>
+       <refentrytitle>glGetShaderInfoLog</refentrytitle>
+       <manvolnum>3G</manvolnum>
+    </refmeta>
+    <refnamediv>
+       <refname>glGetShaderInfoLog</refname>
+       <refpurpose>Returns the information log for a shader object</refpurpose>
+    </refnamediv>
+    <refsynopsisdiv><title>C Specification</title>
+       <funcsynopsis>
+           <funcprototype>
+               <funcdef>void <function>glGetShaderInfoLog</function></funcdef>
+               <paramdef>GLuint <parameter>shader</parameter></paramdef>
+               <paramdef>GLsizei <parameter>maxLength</parameter></paramdef>
+               <paramdef>GLsizei *<parameter>length</parameter></paramdef>
+               <paramdef>GLchar *<parameter>infoLog</parameter></paramdef>
+           </funcprototype>
+       </funcsynopsis>
+    </refsynopsisdiv>
+    <refsect1 id="parameters"><title>Parameters</title>
+       <variablelist>
+           <varlistentry>
+               <term><parameter>shader</parameter></term>
+               <listitem>
+                   <para>Specifies the shader object whose information
+                   log is to be queried.</para>
+               </listitem>
+           </varlistentry>
+           <varlistentry>
+               <term><parameter>maxLength</parameter></term>
+               <listitem>
+                   <para>Specifies the size of the character buffer for
+                   storing the returned information log.</para>
+               </listitem>
+           </varlistentry>
+           <varlistentry>
+               <term><parameter>length</parameter></term>
+               <listitem>
+                   <para>Returns the length of the string returned in
+                   <parameter>infoLog</parameter> (excluding the null
+                   terminator).</para>
+               </listitem>
+           </varlistentry>
+           <varlistentry>
+               <term><parameter>infoLog</parameter></term>
+               <listitem>
+                   <para>Specifies an array of characters that is used
+                   to return the information log.</para>
+               </listitem>
+           </varlistentry>
+       </variablelist>
+    </refsect1>
+    <refsect1 id="description"><title>Description</title>
+       <para><function>glGetShaderInfoLog</function> returns the
+       information log for the specified shader object. The information
+       log for a shader object is modified when the shader is compiled.
+       The string that is returned will be null terminated.</para>
+
+       <para><function>glGetShaderInfoLog</function> returns in
+       <parameter>infoLog</parameter> as much of the information log as
+       it can, up to a maximum of <parameter>maxLength</parameter>
+       characters. The number of characters actually returned,
+       excluding the null termination character, is specified by
+       <parameter>length</parameter>. If the length of the returned
+       string is not required, a value of <constant>NULL</constant> can
+       be passed in the <parameter>length</parameter> argument. The
+       size of the buffer required to store the returned information
+       log can be obtained by calling
+       <citerefentry><refentrytitle>glGetShader</refentrytitle></citerefentry>
+       with the value <constant>GL_INFO_LOG_LENGTH</constant>.</para>
+
+       <para>The information log for a shader object is a string that
+       may contain diagnostic messages, warning messages, and other
+       information about the last compile operation. When a shader
+       object is created, its information log will be a string of
+       length 0.</para>
+    </refsect1>
+    <refsect1 id="notes"><title>Notes</title>
+       <para>The information log for a shader object is the OpenGL
+       implementer's primary mechanism for conveying information about
+       the compilation process. Therefore, the information log can be
+       helpful to application developers during the development
+       process, even when compilation is successful. Application
+       developers should not expect different OpenGL implementations to
+       produce identical information logs.</para>
+    </refsect1>
+    <refsect1 id="errors"><title>Errors</title>
+       <para><constant>GL_INVALID_VALUE</constant> is generated if
+       <parameter>shader</parameter> is not a value generated by
+       OpenGL.</para>
+
+       <para><constant>GL_INVALID_OPERATION</constant> is generated if
+       <parameter>shader</parameter> is not a shader object.</para>
+
+       <para><constant>GL_INVALID_VALUE</constant> is generated if
+       <parameter>maxLength</parameter> is less than 0.</para>
+
+    </refsect1>
+    <refsect1 id="associatedgets"><title>Associated Gets</title>
+       <para><citerefentry><refentrytitle>glGetShader</refentrytitle></citerefentry>
+       with argument <constant>GL_INFO_LOG_LENGTH</constant></para>
+
+       <para><citerefentry><refentrytitle>glIsShader</refentrytitle></citerefentry></para>
+    </refsect1>
+    <refsect1 id="seealso"><title>See Also</title>
+       <para><citerefentry><refentrytitle>glCompileShader</refentrytitle></citerefentry>,
+       <citerefentry><refentrytitle>glGetProgramInfoLog</refentrytitle></citerefentry>,
+       <citerefentry><refentrytitle>glLinkProgram</refentrytitle></citerefentry>,
+       <citerefentry><refentrytitle>glValidateProgram</refentrytitle></citerefentry></para>
+    </refsect1>
+    <refsect1 id="Copyright"><title>Copyright</title>
+        <para>
+            Copyright <trademark class="copyright"></trademark> 2003-2005 3Dlabs Inc. Ltd. 
+            This material may be distributed subject to the terms and conditions set forth in 
+            the Open Publication License, v 1.0, 8 June 1999.
+            <ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
+        </para>
+    </refsect1>
+</refentry>